A novel high-adhesion environmental protection pesticide adjuvant and its application and preparation method

A pesticide adjuvant, high adhesion technology, applied in the agricultural field, to achieve the effect of reducing pollution, reducing environmental pollution, and reducing the number of constructions

Active Publication Date: 2022-05-17
HANGZHOU NORMAL UNIV QIANJIANG COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the droplet flight process, its shape is always in a dynamic change process, so at the moment of its collision with the leaf surface, the migration time of the surfactant is longer than the collision time, which leads to the unsatisfactory application effect of the surfactant

Method used

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  • A novel high-adhesion environmental protection pesticide adjuvant and its application and preparation method
  • A novel high-adhesion environmental protection pesticide adjuvant and its application and preparation method
  • A novel high-adhesion environmental protection pesticide adjuvant and its application and preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A preparation method of a novel high-adhesion environmental protection pesticide adjuvant formula is as follows:

[0034] Step 1: Add 60g of hydrogen-containing silicone oil (0.18%) and 6.0g of absolute ethanol into a four-neck flask, stir mechanically at a constant speed for 15 minutes, so that the hydrogen-containing silicone oil is evenly dissolved in ethanol, and gradually raise the temperature to 50°C. At 2°C / min, the speed of mechanical stirring is 600r / min.

[0035] Step 2: At 50°C, add a mixture of 4.98g of absolute ethanol and 7.78g of acrylic acid to the reaction system with a constant pressure funnel and stir at a rate of 1mL / min, with a mechanical stirring rate of 800r / min, and gradually increase the temperature Polymerization was started at 80°C. The heating rate was kept at 3°C / min,

[0036] Step 3: Add 3 mL of chloroplatinic acid (800 ppm) catalyst dropwise to the reaction system at a constant rate, and react for 3 hours to obtain a silicone emulsion. ...

Embodiment 2

[0041] A preparation method of a novel high-adhesion environmental protection pesticide adjuvant formula is as follows:

[0042] Step 1: Add 50g of hydrogen-containing silicone oil (0.5%) and 7.5g of absolute ethanol into a four-neck flask, stir mechanically at a constant speed for 15 minutes, so that the hydrogen-containing silicone oil is evenly dissolved in ethanol, and gradually raise the temperature to 50°C, and the heating rate remains At 2°C / min, the speed of mechanical stirring is 600r / min.

[0043] Step 2: At 50°C, add a mixture of 18.71g of absolute ethanol and 23.42g of acrylic acid to the reaction system with a constant pressure funnel and stir at a rate of 1mL / min, mechanical stirring at a rate of 800r / min, and gradually increase the temperature To 80°C, the polymerization reaction started. The heating rate was kept at 3°C / min.

[0044]Step 3: Add 3 mL of chloroplatinic acid (1000 ppm) catalyst dropwise to the reaction system at a constant rate, and react for 2....

Embodiment 3

[0049] A preparation method of a novel high-adhesion environmental protection pesticide adjuvant formula is as follows:

[0050] Step 1: Add 50g of silicone oil, hydrogen-containing silicone oil (0.36%), and 2.5g of absolute ethanol into a four-neck flask, stir mechanically at a constant speed for 15 minutes, so that the hydrogen-containing silicone oil is evenly dissolved in ethanol, and gradually raise the temperature to 50°C. Keep it at 2°C / min, and the speed of mechanical stirring is 600r / min.

[0051] Step 2: At 50°C, add a mixture of 12.44g of absolute ethanol and 15.56g of acrylic acid to the reaction system with a constant pressure funnel and stir at a rate of 1mL / min, mechanical stirring at a rate of 800r / min, and gradually increase the temperature To 80°C, the polymerization reaction started. The heating rate was kept at 3°C / min.

[0052] Step 3: Add 3 mL of chloroplatinic acid (700 ppm) catalyst dropwise to the reaction system at a constant rate, and react for 3 h...

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Abstract

The invention discloses a novel high-adhesion environment-friendly pesticide adjuvant and its application and preparation method. In the present invention, the organic silicon emulsion is prepared by adding hydrogen-containing silicone oil and acrylic acid through silicon hydrogen addition, and then the agricultural antibacterial agent acetocilin is mixed evenly with the organic silicon emulsion, and then a dilute acetic acid solution of chitosan is added to the emulsion to utilize the shell The amino group on the polysaccharide and the carboxyl group on the non-toxic and harmless silicone emulsion perform anionic and cationic cross-linking, so as to realize the physical embedding of the pesticide molecule and form a chitosan / organic silicon composite micelle loaded with drugs in the inner core. The pesticide adjuvant has a good high adhesion function, can spread rapidly on the tobacco leaves, and greatly reduces the rebound effect of the spraying process, effectively improves the utilization rate of pesticides, and reduces the impact of pesticides falling on the land on the soil environment. pollution. In addition, the preparation method of the pesticide adjuvant is simple, can achieve multiple times of effective one-time application, effectively reduce the cost of pesticides, and more importantly, reduce environmental pollution, which is in line with the concept of green development.

Description

technical field [0001] The invention relates to the field of agricultural technology, and mainly relates to a high-adhesive, green and environment-friendly pesticide adjuvant formula and its application and preparation method. Background technique [0002] The hydrophobic / superhydrophobic waxy layer on the surface of plants can easily lead to low adhesion of water-based pesticides, resulting in a large rebound when the pesticide is sprayed, resulting in a large amount of pesticide waste and soil pollution. Weakening the rebound ratio and intensity of liquid droplets on the leaf surface is the main research idea to improve the utilization rate of pesticides. The current mainstream method is to improve the rebound of the liquid on the leaves by changing the liquid properties of the liquid, thereby increasing the amount of pesticide molecules attached to the leaves. This idea is mainly realized by the application of surfactants and wetting agents. However, due to the droplet f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/24A01N41/08C08G77/38
CPCA01N25/24A01N41/08C08G77/38Y02A50/30
Inventor 孙燕陈夏伟周时旭范秋瑾寿周翔许衡张尚文徐宇琪徐赞杰
Owner HANGZHOU NORMAL UNIV QIANJIANG COLLEGE
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